Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6531715 | Multilayer contact electrode for compound semiconductors and production method thereof | — | 2003-03-11 |
| 6265236 | Method for the manufacture of a light emitting diode | — | 2001-07-24 |
| 6222205 | Layered semiconductor structure for lateral current spreading, and light emitting diode including such a current spreading structure | Christian Geng | 2001-04-24 |
| 5898192 | Light emitting diode with improved luminous efficiency having a contact structure disposed on a frosted outer surface | — | 1999-04-27 |
| 5731224 | Method for manufacturing ohmic contacts for compound semiconductors | — | 1998-03-24 |
| 5726465 | Light emitting diode | Klaus Gillessen, Albert Marshall | 1998-03-10 |
| 5698865 | Light-emitting diode | Klaus Gillessen | 1997-12-16 |
| 5429954 | Radiation-emitting diode with improved radiation output | — | 1995-07-04 |
| 5250466 | Method for manufacturing ohmic contacts for compound semiconductors | Werner Schairer | 1993-10-05 |
| 4794610 | Heterostructure semiconductor laser diode | Werner Schairer | 1988-12-27 |
| 4791635 | Heterostructure semiconductor laser diode | Werner Schairer | 1988-12-13 |